Slow reading from DVD drive

Discussion in 'alt.windows7.general' started by BobH, Jan 6, 2013.

  1. BobH

    BobH Guest

    Since I recently re installed my OS, I have found that the Samsung
    DVD/CD Reader/Writer has been very slow in reading and loading programs
    from the disc.
    I first noticed this when I was installing the motherboard drivers from
    the manufacturers disc was quite slow compared to how it used to be.

    The said drive is a SATA drive and connected to a SATA 3.0Gb/s connector
    on the motherboard.

    I was wondering if I connected the drive to a SATA 6.0GB/s it would be
    faster but somehow I doubt it.

    The drive is fairly new as I only bought it less than 6 weeks ago.
    I used to have an IDE drive and found this to be reasonably quick.

    Any ideas as to how to make it a bit faster.
     
    BobH, Jan 6, 2013
    #1
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  2. BobH

    Ken Blake Guest


    If something is very slow compared to what it used to be, there's a
    very good chance that you are infected with malware. What anti-virus
    and anti-spyware programs do you run? Are they kept up to date?
     
    Ken Blake, Jan 6, 2013
    #2
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  3. BobH

    BobH Guest

    Its been slow since I started to re install my OS and drivers for the
    motherboard.
    Then once I had done that I installed BitDefender Total Security 2013,
    as well as Malwarebytes AntiMalware and Super Anti Spyware.

    Oh, and I also have Multi-AV installed and I then scanned my system with
    each of the said programs before I installed any other programs or software.

    I know, well according the various anit virus/antimalware programs I
    have used today, I know my system is clean as can be.
     
    BobH, Jan 6, 2013
    #3
  4. If all these have real time scanning enabled, that could be your
    problem. They're all trying to scan every file on the DVD while it's
    being read.
     
    John Williamson, Jan 6, 2013
    #4
  5. BobH

    BobH Guest

    Yes Bit Defender does real time scanning, and I would agree that this
    could be the problem apart from when I was loading drivers for the
    motherboard before BitDefender was installed.
     
    BobH, Jan 6, 2013
    #5
  6. BobH

    Ed Cryer Guest

    Check the driver details in Device Manager. They should all show the
    certificate of approval icon.
    Check especially for GEAR drivers. They can cause this problem.

    Ed
     
    Ed Cryer, Jan 6, 2013
    #6
  7. BobH

    Stan Brown Guest

    I agree with Ken's comment, but I'll suggest also that the laser may
    be going bad. I have a CD-DVD drive, as most people do. Access to a
    data DVD is quite peppy, but access to a data CD is very slow, with a
    lot of seeks before it finally opens the folder or displays the file.
    There's one laser for the CD and one for the DVD, and I'm pretty sure
    the problem is that the CD laser is going bad.

    I would just replace the drive, but the screws are screwed in so
    tightly that I can't loosen them. Thanks, Dell!
     
    Stan Brown, Jan 6, 2013
    #7
  8. BobH

    Ken Blake Guest


    Based on his subsequent message, your guess is more likely right than
    mine.
     
    Ken Blake, Jan 6, 2013
    #8
  9. BobH

    BobH Guest

    Ok, it has a GEARAspiWDM.sys driver version 2.02.03.00 as well as a
    cdrom.sys driver version 6.1.7600.16385(win7_rtm.090713-1255)

    Is the certificate of approval a small upside down U shaped dropping
    below the actual rectangular shaped icon?
    If it is then they both have the said certificate.
     
    BobH, Jan 6, 2013
    #9
  10. BobH

    gufus Guest

    May I suggest "System Explorer"
    http://systemexplorer.net/

    It should help you to find the prob. (it's FREE too)
     
    gufus, Jan 6, 2013
    #10
  11. BobH

    BobH Guest

    Things have improved now, as I did some searching and found that I
    should have disabled write caching for my SSD drive, which I did
    initially, but forgot to do a couple of things since the re install.

    Earlier, when a program I use to catalogue my CDs/DVD's took something
    like 1 hour 20 minutes to read all the data of about 4gb on a DVD, but
    now it can be done in much less than 1 hour, say about 45 minutes.

    So that seems to be about normal now for me.

    Thanks for all the replies and suggestions
     
    BobH, Jan 6, 2013
    #11
  12. BobH

    Ed Cryer Guest

    I have those two against my drive.
    The GEAR one always puts me in mind of a tooth left under a pillow for
    the Tooth Fairy.
    But still, c'est la vie and Dieu et mon Droit! And, like on the milled
    edge of a coin, Nemo Me Impune Lacessit.

    Ed
     
    Ed Cryer, Jan 6, 2013
    #12
  13. BobH

    Paul Guest

    There is actually a benchmark for optical drives.
    It's a freebie.

    The following picture, shows two versions of the program,
    The current version is called Nero DiscSpeed.

    http://img163.imageshack.us/img163/1669/cdbench.gif

    You can get a copy of Nero DiscSpeed here.

    http://www.nero.com/enu/downloads/index.php
    (DiscSpeed - 29.5MB)

    When I installed that in Windows 8, it insisted that I install
    ..NET 3.5. So the latest version is a bit of a pain, compared
    to previous ones that didn't have quite as many dependencies.
    (If you're prompted at runtime to "turn on Autoruns", just
    say no, as I think that's so they can pop up advertising in
    your face :) There is no reason for *anything* to Autorun in that
    program. It is just a benchmark, not a home entertainment system.)

    *******

    The right hand vertical axis, is the speed in megabytes per second.
    The disc reads from the hub (small diameter) to the outside edge
    (big diameter), and in this case, the spindle spins at a relatively
    constant speed. That's called CAV as far as I know. The data rate
    increases because of the diameter of the media the head is over
    at the moment. The read path is a spiral.

    In my benchmark, the disc playback ends while it was transferring
    at a bit more than 12MB/sec.

    The reason those were photographed half finished, is the results get
    blanked out if I let it run to completion. The seek tests appear
    to be a total fabrication (because, for one thing, the drive doesn't
    stay spinning at high speed, which invalidates the attempt to read).
    But at least the sustained transfer curve has some value. The stuff in
    the left column of numbers is trustworthy, while the right
    column is less so. The seek time should be down around 100 milliseconds
    or so.

    My optical drive is connected via USB2 (30MB/sec max), and so slightly
    more than 12MB/sec does not tax it.

    When a storage device is connected to SATA or IDE, it can operate
    in DMA mode or polled (PIO) mode. PIO, since it's done by the CPU,
    can be quite slow. Windows will "gear down" to PIO mode, if
    excessive errors are seen on the cabling. The theory goes, that
    slowing the transfer, will somehow improve the error rate, which
    is why they did it.

    If you see a curve, chances are all is well. If you see a "flat line",
    and it's significantly slower, it could be the drive is not in the
    right mode for best results.

    Notice there are very few "spikes" in my graphs, implying the error
    rate isn't too bad. Errors are definitely present, but they're not
    an issue until they're in the "thousands" rather than in the "tens"
    of errors. Once you get to the "thousands of errors" level, things
    start to slow down, or you see a downward speed spike in the scan.

    The access time (head movement) on optical discs is quite slow. The CD drive
    can move its head around (for random file access), in about 70% of the
    time that it takes a DVD or BluRay drive. It's one reason to continue
    to try to install software from an actual CD drive. Random access will
    cause the effective transfer rate to slow to a crawl. A person
    designing an installer CD, the idea is, they're supposed to arrange the
    files for smooth continuous transfer, rather than make the head jump all
    over the place. So if it seems slow, that's another reason - less than
    optimal file size and placement.

    Post a link to a picture of your benchmark run, for comments.

    Paul
     
    Paul, Jan 7, 2013
    #13
  14. BobH

    Paul Guest

    GEAR is put there by iTunes (GEAR can come from other packages, but
    iTunes would be a popular source of it). Since Windows 7 has built-in
    support for burning media, strictly speaking the iTunes installer should
    stop using the GEAR software product. If iTunes needs a CD or DVD burned,
    there is an API in Windows 7 for that. On WinXP, there is an optional download,
    to give you imapi2 support for discs. GEAR is definitely useful on older
    setups.

    http://en.wikipedia.org/wiki/Image_Mastering_API

    (as an add-in for WinXP)

    http://support.microsoft.com/kb/KB932716

    Optical disc burner software, likes to install Upperfilter drivers,
    and this can cause functional problems. But it should not manifest
    as a speed problem. You can fix this kind of thing with Regedit, but
    the Fixit is a bit safer. Occasionally, an eager beaver user will
    use Regedit, to delete every UpperFilter they can find, which
    causes their keyboard to stop working :) The Fixit has a rather
    limited diet of UpperFilters, just grabbing a specific one.

    http://support.microsoft.com/mats/cd_dvd_drive_problems/en-us

    http://blogs.technet.com/b/fixit4me...upper-filters-for-cd-devices-fix-it-live.aspx

    Paul
     
    Paul, Jan 7, 2013
    #14
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